Do you think that someone should leave his boring job for less pay, or just stay there?

There could be many reasons why you are feeling bored of your current Job, Sometimes we ourself becomes lazy and starts assuming that our Job is boring. So just try to figure this out first, if you think that the Job which you are doing is really a boring one as well as you are being paid less for that, then you should look for a change according to your interest. Don't consider salary as the first priority, find a good job first where you can perform well and show your talent, it will automatically raise your salary.